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From "Renkai Ge (JIRA)" <j...@apache.org>
Subject [jira] [Created] (KAFKA-6362) auto commit not work since coordinatorUnknown() is always true.
Date Thu, 14 Dec 2017 12:26:00 GMT
Renkai Ge created KAFKA-6362:
--------------------------------

             Summary: auto commit not work since coordinatorUnknown() is always true.
                 Key: KAFKA-6362
                 URL: https://issues.apache.org/jira/browse/KAFKA-6362
             Project: Kafka
          Issue Type: Bug
          Components: clients
    Affects Versions: 0.10.2.1
            Reporter: Renkai Ge



{code}
[2017-12-14 20:09:23.501] [Kafka 0.10 Fetcher for Source: source_bj-docker-large (14/40)]
INFO  org.apache.kafka.clients.consumer.ConsumerConfig - ConsumerConfig values: 
	auto.commit.interval.ms = 5000
	auto.offset.reset = latest
	bootstrap.servers = [11.192.77.42:3002, 11.192.73.43:3002, 11.192.73.66:3002]
	check.crcs = true
	client.id = 
	connections.max.idle.ms = 540000
	enable.auto.commit = true
	exclude.internal.topics = true
	fetch.max.bytes = 52428800
	fetch.max.wait.ms = 500
	fetch.min.bytes = 1
	group.id = tcprtdetail_flink
	heartbeat.interval.ms = 3000
	interceptor.classes = null
	key.deserializer = class org.apache.kafka.common.serialization.ByteArrayDeserializer
	max.partition.fetch.bytes = 1048576
	max.poll.interval.ms = 300000
	max.poll.records = 500
	metadata.max.age.ms = 300000
	metric.reporters = []
	metrics.num.samples = 2
	metrics.recording.level = INFO
	metrics.sample.window.ms = 30000
	partition.assignment.strategy = [class org.apache.kafka.clients.consumer.RangeAssignor]
	receive.buffer.bytes = 65536
	reconnect.backoff.ms = 50
	request.timeout.ms = 305000
	retry.backoff.ms = 100
	sasl.jaas.config = null
	sasl.kerberos.kinit.cmd = /usr/bin/kinit
	sasl.kerberos.min.time.before.relogin = 60000
	sasl.kerberos.service.name = null
	sasl.kerberos.ticket.renew.jitter = 0.05
	sasl.kerberos.ticket.renew.window.factor = 0.8
	sasl.mechanism = GSSAPI
	security.protocol = PLAINTEXT
	send.buffer.bytes = 131072
	session.timeout.ms = 10000
	ssl.cipher.suites = null
	ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
	ssl.endpoint.identification.algorithm = null
	ssl.key.password = null
	ssl.keymanager.algorithm = SunX509
	ssl.keystore.location = null
	ssl.keystore.password = null
	ssl.keystore.type = JKS
	ssl.protocol = TLS
	ssl.provider = null
	ssl.secure.random.implementation = null
	ssl.trustmanager.algorithm = PKIX
	ssl.truststore.location = null
	ssl.truststore.password = null
	ssl.truststore.type = JKS
	value.deserializer = class org.apache.kafka.common.serialization.ByteArrayDeserializer

[2017-12-14 20:09:23.502] [Kafka 0.10 Fetcher for Source: source_bj-docker-large (14/40)]
INFO  org.apache.kafka.common.utils.AppInfoParser - Kafka version : 0.10.2.1
[2017-12-14 20:09:23.502] [Kafka 0.10 Fetcher for Source: source_bj-docker-large (14/40)]
INFO  org.apache.kafka.common.utils.AppInfoParser - Kafka commitId : e89bffd6b2eff799
{code}

My kafka java client cannot auto commit.After add some debug log,I found that the coordinatorUnknown()
function in [ConsumerCoordinator.java#L604|https://github.com/apache/kafka/blob/0.10.2.1/clients/src/main/java/org/apache/kafka/clients/consumer/internals/ConsumerCoordinator.java#L604]
always returns true,and nextAutoCommitDeadline just increases infinitly.Should there be a
lookupCoordinator() after line 604 like in [ConsumerCoordinator.java#L508|https://github.com/apache/kafka/blob/0.10.2.1/clients/src/main/java/org/apache/kafka/clients/consumer/internals/ConsumerCoordinator.java#L508].After
I add lookupCoordinator() next to line 604.The consumer can auto commit offset properly.



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